二氧化锡纳米颗粒功能化的氮化硼纳米管

SnO2 nanoparticle-functionalized boron nitride nanotubes.

作者信息

Zhi Chunyi, Bando Yoshio, Tang Chengchun, Golberg Dmitri

机构信息

Advanced Materials Laboratory, National Institute for Materials Science (NIMS), Namiki 1-1,Tsukuba, Ibaraki 305-0044, Japan.

出版信息

J Phys Chem B. 2006 May 4;110(17):8548-50. doi: 10.1021/jp056705a.

DOI:10.1021/jp056705a

PMID:16640404

Abstract

Boron nitride nanotubes (BNNTs) were synthesized by a carbon-free chemical vapor deposition method using boron and metal oxide as reactants. Then SnO(2) nanoparticles were functionalized on them via a simple wet chemistry method. Detailed transmission electron microscopy (TEM) observations reveal that SnO(2) nanoparticles may cover the tube surface or be encapsulated in tube channels. The lattice distances of both BNNT and SnO(2) have been changed due to the strong interactions between them. The band gap energy of SnO(2) particles is found enlarged due to the size effect and interaction with BNNTs.

摘要

采用以硼和金属氧化物为反应物的无碳化学气相沉积法合成了氮化硼纳米管（BNNTs）。然后通过简单的湿化学方法在其上对SnO₂纳米颗粒进行功能化处理。详细的透射电子显微镜（TEM）观察表明，SnO₂纳米颗粒可能覆盖在管表面或被封装在管通道中。由于它们之间的强相互作用，BNNT和SnO₂的晶格间距都发生了变化。由于尺寸效应以及与BNNTs的相互作用，发现SnO₂颗粒的带隙能量增大。